Thin-Film SRF Roadmap Report

This document proposes a comprehensive approach focused on the expertise and collaborative network that has been built in Europe and in the entire world over the past years. The IFAST WP9 team has developed a program aligned with the priorities deemed essential by the TF SRF community for continuous progress in this field. Ten priority topics have been identified on thin film developments (❶ Niobium on copper, ❷ Nb3Sn on Cu and Nb, ❸ Other superconductors (other A15, MgB₂, Other) on Cu and Nb, ❹   Multilayers (SIS structures), ❺   Surface functionalization), but also on key activities that enable these developments (❻ Cu cavity production and surface preparation, ❼   General Characterization / Surface science, ❽   Deposited cavities preparation and RF testing, ❾   Theory, ❿   Industrialization).